CA2083589C - Methode et dispositif adaptatifs de correction aval pour reduire le bruit dans un amplificateur - Google Patents

Methode et dispositif adaptatifs de correction aval pour reduire le bruit dans un amplificateur

Info

Publication number
CA2083589C
CA2083589C CA002083589A CA2083589A CA2083589C CA 2083589 C CA2083589 C CA 2083589C CA 002083589 A CA002083589 A CA 002083589A CA 2083589 A CA2083589 A CA 2083589A CA 2083589 C CA2083589 C CA 2083589C
Authority
CA
Canada
Prior art keywords
signal
directional coupler
amplifier
input
sample
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002083589A
Other languages
English (en)
Other versions
CA2083589A1 (fr
Inventor
Ashok Kumar Talwar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Edo Communications and Countermeasures Systems Inc
Original Assignee
American Nucleonics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Nucleonics Corp filed Critical American Nucleonics Corp
Publication of CA2083589A1 publication Critical patent/CA2083589A1/fr
Application granted granted Critical
Publication of CA2083589C publication Critical patent/CA2083589C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CA002083589A 1991-11-25 1992-11-23 Methode et dispositif adaptatifs de correction aval pour reduire le bruit dans un amplificateur Expired - Lifetime CA2083589C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US797,788 1991-11-25
US07/797,788 US5148117A (en) 1991-11-25 1991-11-25 Adaptive feed-forward method and apparatus for amplifier noise reduction

Publications (2)

Publication Number Publication Date
CA2083589A1 CA2083589A1 (fr) 1993-05-26
CA2083589C true CA2083589C (fr) 1998-01-20

Family

ID=25171812

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002083589A Expired - Lifetime CA2083589C (fr) 1991-11-25 1992-11-23 Methode et dispositif adaptatifs de correction aval pour reduire le bruit dans un amplificateur

Country Status (3)

Country Link
US (1) US5148117A (fr)
CA (1) CA2083589C (fr)
GB (1) GB2262007A (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330288C1 (de) * 1993-01-25 1994-06-23 Arthur Wolf HF-Verstärkerschaltung
US5396189A (en) * 1993-08-03 1995-03-07 Westech Group, Inc. Adaptive feedback system
US5574978A (en) * 1994-05-12 1996-11-12 American Nucleonics Corporation Interference cancellation system and radio system for multiple radios on a small platform
US5455537A (en) * 1994-08-19 1995-10-03 Radio Frequency Systems, Inc. Feed forward amplifier
US5489875A (en) * 1994-09-21 1996-02-06 Simon Fraser University Adaptive feedforward linearizer for RF power amplifiers
US5630223A (en) * 1994-12-07 1997-05-13 American Nucleonics Corporation Adaptive method and apparatus for eliminating interference between radio transceivers
US5742591A (en) * 1995-06-07 1998-04-21 General Instrument Corporation Interference cancellation system for CATV return transmissions
RU2142670C1 (ru) * 1995-11-16 1999-12-10 Самсунг Электроникс Ко., Лтд. Устройство линейного усиления мощности
US5742201A (en) * 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier
US5729829A (en) * 1996-02-29 1998-03-17 American Nucleonics Corporation Interference mitigation method and apparatus for multiple collocated transceivers
US5892397A (en) * 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
JP3325770B2 (ja) * 1996-04-26 2002-09-17 三菱電機株式会社 ノイズ低減回路及びノイズ低減装置及びノイズ低減方法
US5789976A (en) * 1996-06-17 1998-08-04 Corporation De L'ecole Polytechnique Digital adaptive control of feedforward amplifier using frequency domain cancellation
US5940025A (en) * 1997-09-15 1999-08-17 Raytheon Company Noise cancellation method and apparatus
US6133789A (en) * 1997-12-10 2000-10-17 Nortel Networks Corporation Method and system for robustly linearizing a radio frequency power amplifier using vector feedback
US6232835B1 (en) 1998-02-13 2001-05-15 Nortel Networks Limited System and method of linearizing the gain error of a power amplifier
US6215812B1 (en) 1999-01-28 2001-04-10 Bae Systems Canada Inc. Interference canceller for the protection of direct-sequence spread-spectrum communications from high-power narrowband interference
US6594476B1 (en) 1999-09-24 2003-07-15 American Nucleonics Corporation Adaptively peaked super-regenerative filter
US6285252B1 (en) * 1999-09-30 2001-09-04 Harmonic Inc. Apparatus and method for broadband feedforward predistortion
US6459337B1 (en) 2000-07-05 2002-10-01 Teledyne Technologies Incorporated System and method for noise and spurious suppression in power amplifier systems
US6525603B1 (en) 2001-01-05 2003-02-25 Remec, Inc. Feedforward amplifier linearization adapting off modulation
US6734726B2 (en) * 2001-06-29 2004-05-11 Remec, Inc. Balanced distortion reduction circuit
KR20030014514A (ko) 2001-08-11 2003-02-19 한국전자통신연구원 비선형 초고주파 회로의 혼변조 신호 검출 장치
EP1425848A2 (fr) * 2001-08-14 2004-06-09 Redline Communications Inc. Circuit de compensation aval
US7058368B2 (en) * 2002-06-27 2006-06-06 Nortel Networks Limited Adaptive feedforward noise cancellation circuit
US6734734B2 (en) 2002-07-24 2004-05-11 Teledyne Technologies Incorporated Amplifier phase droop and phase noise systems and methods
US8364092B2 (en) * 2005-04-14 2013-01-29 Ecole De Technologie Superieure Balanced active and passive duplexers
US7656236B2 (en) 2007-05-15 2010-02-02 Teledyne Wireless, Llc Noise canceling technique for frequency synthesizer
KR101400862B1 (ko) * 2007-09-19 2014-05-28 삼성전자주식회사 무선통신시스템에서 저잡음 증폭 장치 및 방법
US8179045B2 (en) 2008-04-22 2012-05-15 Teledyne Wireless, Llc Slow wave structure having offset projections comprised of a metal-dielectric composite stack
DE102008052172B4 (de) * 2008-10-17 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Erzeugen eines Korrektursignals
US8090337B2 (en) * 2010-01-25 2012-01-03 Bae Systems Information And Electronic Systems Integration Inc. Chirp fourier transform method and apparatus for canceling wide band interference
US8947164B2 (en) 2012-05-18 2015-02-03 Microsemi Corporation Integrated technique for enhanced power amplifier forward power detection
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
TW201636625A (zh) 2014-12-22 2016-10-16 美高森美股份有限公司 對數線性功率偵測器
WO2021201817A1 (fr) * 2020-03-30 2021-10-07 Intel Corporation Appareil d'amplification, dispositif et procédé pour une prise d'un réseau de communication par câble

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699444A (en) * 1969-02-17 1972-10-17 American Nucleonics Corp Interference cancellation system
US4389618A (en) * 1981-04-15 1983-06-21 The United States Of America As Represented By The Secretary Of The Navy Adaptive feed-forward system
US4394624A (en) * 1981-08-07 1983-07-19 The United States Of America As Represented By The Secretary Of The Navy Channelized feed-forward system
GB2107540B (en) * 1981-10-14 1985-06-26 Marconi Co Ltd Feedforward amplifiers
GB2167256A (en) * 1984-11-17 1986-05-21 Racal Communications Equip Feedforward amplifiers
US4885551A (en) * 1988-10-31 1989-12-05 American Telephone And Telegraph Company At&T Bell Laboratories Feed forward linear amplifier
GB2238197A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed-forward amplifier with amplitude and phase pre-correction
GB9009295D0 (en) * 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
US5077532A (en) * 1990-12-17 1991-12-31 Motorola, Inc. Feed forward distortion minimization circuit

Also Published As

Publication number Publication date
GB2262007A (en) 1993-06-02
GB9223954D0 (en) 1993-01-06
CA2083589A1 (fr) 1993-05-26
US5148117A (en) 1992-09-15

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